| 摘要 |
FIELD: valving systems. ^ SUBSTANCE: control device comprises two flat valving gates that are provided with openings and interposed between the guiding members provided in the common housing. The housing has through openings coaxial to the openings in valving gates and drive. The rod of the drive is connected with one of the valving gates. The bottom parts of each valving gates are made of gear racks that engage the gear wheel freely mounted on the axle. ^ EFFECT: simplified design and enhanced reliability. ^ 3 dwg |
